Tbh, BMM isn't going to be doing an in-orbit Bazaar, getting just one customer at a time would be kind of a, well, it'd be quite intimidating for 8 cashiers to stare a single customer down.
So, I'd say the split is more along the lines of, Kraken is a space-borne trading hub, while BMM needs to land on a planet, probably close to a population center. Kraken clientele would be more like captains and crews, BMM clientele would be just random civilians. Well, I mean, sure, BMM might get the occasional captain as well, but mostly it'd trade with townies. As such, Kraken might be more geared towards selling gear, armaments, ship parts, etc. While BMM might be selling like cool little souvenirs, food items, materials, etc. Maybe sell the occasional gun as well.
All in all, I think BMM and Privateer will end up habiting two different environments.